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' Oct. 14. 1924.

L. BARTLETT MACHINE FOR FILLING LUBRICATING BUSHINGS 4 Sheets-Sheet l Filed July 25 1923 J72 Wen for" Oct. 14, 1924. 1,511,210

L. BARTLETT MACHINE FOfi FILLING LUBRICATING BUSHINGS Filed July 23 1923 4 Sheets-Sheet 2 venzor:

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L. BARTLETT MACHINE FOR FILLING LUBRICATINGBUSHINGS Filed July 23 1923 4 Sheets-Sheet 5 OQZM by i i'orneys.

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Oct. 14. 1924.

L. BARTLETT MACHINE FOR FILLING LUBRICATING BUSHINGS Filed July 23. 1923 4 Sheets-Sheet 4 Jx l ILII 1 I141 4 3 E A 4 p H 3 3 6 a 1 WJHH 3 7 F1 4. -4 4 -1- mn H W r n! Y 8 3 7 a 3 4 JWQL Patented Get. 14, 1924.

nits-o STATES LEONARD BARTLETT, or SPRINGFIELD,

IMAGHINEnt SPECIALTY COMPANY, OF OF MASSACHUSETTS.

MACHINE'FOR' FILLI1\TC-t Application filed July 23, 1923.

To (LU whom it may concern:

Be it known that I, LEONARD BARTLETT,

citizen of the United States, residing at Springfield, county of Hampden, State of Massachusetts, have invented a certain new and useful. Improvement in. Machines for i illing LubricatingBushings, of-which the following is a specification, reference being had therein to the accompanyin drawings;

This invention relates to machines for fillself-lubricating bushings by inserting lugs of lubricant material in perforations therein, and especially to machines of the general type disclosed and claimed in Lettors Patent No. 1,396,098, issued to me November 8, 1921, and wherein the loose lubricant material is compressed into plugs of the required form and size before being inserted into the perforations in the bush ing.

The present invention has for its principal object to provide a machine ofthis general type capable of forming and inserting simultaneously aplurality of lubricant plugs, the precise number of which may be varied according to thev requirements, and in which machine the plugs are partly formed before their introduction into the carrier which delivers or transfers them to the inserting devices.

The foregoing and other objects of the invention, together with means whereby the same may be carried into effect, will bestbe understood from the following description of one form or embodiment thereof,

illustrated in the accompanying drawingsf It will be understood, however, that the particular construction described and shown has been chosen for illustratlve purposes merely, and that the invention, as defined. in the claims hereunto appended may be otherwise practised without departure from its spirit and scope.

In said dra ings, Fig. 1 is a front elevation of substantially the complete machine.

Fig. is a side elevation with one of the hoppers shown in section.

Fig. 3 is an enlarged front elevation, p-..rtly broken away of the devices for forming and inserting the lubricant plugs, the upper portions of the hoppers being incliratcd in broken lines.

4 is a top plan view of the bracket which supports the carrier slide, the mech- PATENT OFFICE.

MASSACHUSETTS,ASSIGNOR TO RELIANCE BOSTON, MASSACHUSETTS, A CORPORATION LUBRIGATINGBUSHINGS.

Serial No. 653,100.

ani'sm for operating the same, and th'ehop- Ypers, the'low'er ends of the-latter being shown in section.

Fig.6 is a horizontal,sectiontaken substantially o'n the line 5--5.1, Fig.' 3' looking upwardly.

fF-igkti is a 'section on the'line 6 -6 Fig. 5,'of the cros's head and the' turrets car ried thereby. I

The machine frame carries a vertically ,adjustablebed 16" and .is' provided with guides 17 for a vertically reciprocating ram 18 connected byapitman 19 with the crank on" a main shaft 20, journalled in the frame 15' and provided witha belt pulley 21, the parts thus far described constituting a power press of well known type.

, Carried by the bed 16 is a, support in the form of a block 22, for the bushings to be filled, one of which is shown at 23, said bushings being mounted on a mandrel 24 and resting in a' V-shaped notch in the top of the .supporting block 22, whereby they are automatically centered.

Thai-am 18 carries a crosshead 25 in recesses in the lower face of which are rotatably mounted threeturre'ts 26, 27 and 2'! the axes of said turrets being in a common r v'ertical plane extending longitudinallyofsaid crosshead. Each turret is formed with a coaxial stem 76 'journalled in the -cross head 25 and the upper end of which is reduced in diameter, as shown at 28, toreceivea gear 29, which engages the upper surface of the crosshead 25 and is secured to said reduced end by a nut 30 thereon, the gears on the several turrets being in engagement with one another, whereby said turrets are connected for rotation in unison.

The central turret 26 has secured to its underside as by a bolt 31, a coaxial cylindrical head'32 in which are, rigidly mounted aplurality of sets of plungers 33, there being a different number of plungers in each set. In the construction shown, there are four sets composed respectively of one, two, three and four plungers, so arranged on the turretthat by turning the latter, any. set: may be brought into operative position over the axis of thebushing 23 on the support 22. The set of plungers brought into operative position is accurately centered by means of a pin 34 slidably mounted in a bracket on the front of the crosshead 25, said pin being pressed inwardly by a spring 36 and having a conical end engaging suitably formed depressions 37 in the head of the turret 26.

The turrets 27 and 27 which are located on opposite sides respectively of the turret 26 are substantially alike and a description of one will be suflicient for both. The turret 27 carries a plurality of sets of forming plungers 38 corresponding in number to the plungers 33 of the several sets, but opposite ly arranged. so as to cause corresponding sets on the two turrets to be brought into operative position when said turrets are rotated in opposite directions due to their intermeshing gears 29. The forming plungers 38 are arranged to slide longitudinally in the head of the turret 27 and in recesses 39 in the crosshead 25, said recesses being of a suitable number and arrangement to receive all of the plungers 38 irrespective of the adjustment of the turret 27. Within the recesses 39 are springs 40 bearing on. blocks 41 which engage the heads 42 of the plungers 38. If desired, one of the blocks 41 may be formed with a conical end, as shown at the right in Figure 6, to engage a conical depression in the head 42, of one plunger of each set, thereby serving to center the turret 27 in its several positions of adjustment. The lower end of each of the forming plungers 28 is received in a tubular forming shell 43 carried by a disk 44 supported by a rod 45, which extends axially through the turret and is provided at its upper end with a nut 46 engaging the reduced end 28 of said turret, said rod being surrounded by a spring 47 interposed between the frame 44 and the bottom of a countersunk recess in the lower end of the turret.

Below the crosshead 25 and turrets 26, 27 and 27 is a carrier in the form of an elongated slide 50, guided for longitudinal rectilinear movement in a direction parallel to the crosshead 25, in ways formed in a bracket 51 secured to the frame 15 by a bolt 52. The carrier slide 50 is reciprocated in its ways by a lever 53 having a forked end embracing a pin 54 on said slide, said lever being fulcrumed at its opposite end on a stud 55 on the bracket 51 and carrying intermediate its ends a cam roller 56 which cooperates with a groove in a cam 57 on one end of a shaft 58 journalled in the bracket 51 and extending transversely of the machines. At its opposite end the shaft 58 carries a sprocket 59 connected by a chain 60 with a sprocket 61 on the main shaft 20, whereby said shaft 58 is rotated. The slide or carrier 50 has two sets of perforations 63 and 63 the number of perforations in each set corresponding in number and arrangement to the maximum number of forming plungers 38 and inserting plungers 33 in the several sets. The arrangement is such that with the carrier 50 in one extreme position, as shown in Figure 1, the perforations 63 are beneath the turret 27 and an imperforate portion of the carrier is beneath the turret 7, while in the opposite extreme position, as shown in Figures 3 and 4, the perforations 63 are beneath the turret 27, the perforations 63 are beneath the turret 26, and an imperforate portion is beneath the turret 2T. Beneath the turret 26 and immediately over the work support 22, the bracket 51 is provided with a throat 80, said bracket and throat having registering perforations 7 9 in alinement with the plungers 33 and with which the perforations 63 and 63 in the carrier 50 register when said carrier is in its opposite posit-ions, respectively. The sprockets 59 and 61 are so proportioned, and the cam 57 so designed and set, that the carrier 50 is moved into one extreme position at one upward movement of the crosshead 25, and into the opposite position at the next succeeding upward movement thereof.

lnterposed between the carrier 50 and the lower ends of the forming plungers 38 and forming shells 43 on each of the turrets 27 and 27 when the crosshead 25 is in its uppermost position, are the lower ends of two hoppers 65 adapted to contain loose lubricant material of the character of which the lubricant plugs are made. The lower ends of said hoppers are so arranged that, when the cross head 25 descends, the plungers 38 106 and shells 43 pass into and through them. Within each hopper 65 are agitators 66 mounted on shafts 67 journaled in suitable hearings in said hoppers. Each of the shafts 67 is connected by mitre gears 68 with a 105 shaft 69 extending transversely of the machine between the hoppers and journaled in suitable bearings thereon, said shaft having at one end a sprocket 70 connected by a chain 7 2 with a sprocket 7 3 rotatably mount- 110 ed on a bracket 74 secured to one of the guides 1'? said sprocket 73 having secured thereto or formed integral therewith a sec-- ond sprocket 75 over which the chain 60 passes.

The operation of the machine is as follows Each bushing 23 to be filled is placed. upon a mandrel 24 of suitable size and is then laid in the notch in the supporting 120 block 22 with a longitudinal line of perforations uppermost, and in register with the perforations 7 9 in the throat 80. The turrets are adjusted to bring into operative position sets of plug-forming and inserting plungers appropriate to the number of perforations to be filled. If each line of perforations in the bushing be greater than the maximum number of plungers in any one set, that set having the greatest number is used, and the same or another set of suitable number subsequently employed to complete the line. At each operation of the machine, the crosshead descends, carrying with it the three turrets. The forming de- 'ices carried by that turret 27 or 27 at that time opposite an imperforate part of the carrier slide (for example those carried by the turret 27 in Figure descend through the lower end of the corresponding hopper 65, causing a. quantity of lubricant material to be received in each of the forming shells d3. Vhen the lower ends of said shells are brought into engagement with the slide 50, the spring 47, yields, permitting the plungers 38 to descend further so as to compress said material in. said shells and against the slide to an extent determined by the strength of the springs 40, forming said material into plugs which are retained in said shells as the crosshead 25 rises. Also at each descent of the crosshead 25-. the shells 43 and plungers 38 of the outer forming turret 27 pass downwardly through. the corresponding hopper 65, but, said shells, having previously been filled, as above ex:- plained, by lubricant plugs formed and compressed therein, push aside the lubricant ma terial in said hopper and are brought into engagement with the carrier slide 50 and into register with the perforations .63 there in, after which the movement of the shells 4-3 is arrested while the. plungers 38 descend further, forcing the plugs from said shells into said perforations. Furthermore, at each descent of the crosshead 25, the inserting plungers pass downwardly through one of perforations, for example, the set 63 in the carrier slide 50, forcing the lubricant plugs, previously placed in said perforations, out of the latter, through the throat 80, and into perforations in the bushing 23.

t will be understood that between successive descents of the crosshead 25, the carrier slide 50 is reciprocated to bring the perforations 63 and 63 therein alternately in register with the inserting plungers 33, the perforations 63 being brought alternately into register with said inserting plungers and with the forming devices on the turret 27, and the perforations 63 being brought alternately into register with said inserting plunger-s and with the forming devices on the turret 27 It will also be seen that with reference to the forming devices on each turret, said forming devices operate at one descent of the crosshead 25 to compress lubricant material in the shells 4-3 against an imperforate part of the carrier slide 50 to form lubricant plugs, and at the next descent of the crosshead to force said plugs from said shells and into the perforations in the carrier, thereby requiring two strokes of the machine to comlplete their J- r the cycle of operations, and operating to form the lubricant plugs independently of the perforations in the carrier, and afterward to insert said plugs in said perforations. It will, furthermore, be seen however that there being two sets of forming devices, the inserting devices will, after the machine has been started operate at each stroke of the crosshead 25 to insert into the perforations in the bushing a number of plugs, depending upon the adjustment of the turrets.

What I claim is;

1. In a machine for filling self-lubricating bushings, a. plurality of inserting devices, and means for actuating said devices simultaneously to insert a plurality of lubricant clu s at each operation of the machine said machine having provision for varying the number of plugs so inserted.

2. In a machine for filling self-lubricating bushings, means for forming a plurality of lubricant plugs at ach operati n of the ma chine, and means for simultaneously inserting all of the plugs so formed at a succeeding operation of the machine.

In a machine for filling self lubricating bushings, means for forming a plurality of lubricant plugs at each 01 eration of the machine, and means for simultaneously inserting all of the plugs so formed at a succeeding operation of the machine, said machine having provision for varying the number of plugs so inserted.

4. In a machine for filling self-lubricating bushings, means for supportin a perforated bushing to be filled, a carrier for lubricant material, a turret having a. plurality of sets of inserting devices to force the lubricant material from said carrier into the perforations in said bushing, said turret b ing rotatable to bring any of said sets of n serting devices into operative position, and means for relatively reciprocating said turret and supporting means.

In a machine for filling self-lubricating bushings, means for supporting a perforatec bushing to be filled, a turret having a plurality of sets of devices for forming lubricant plugs, a turet having correspon ing of devices for inserting said plugs into the perforations in said bushing, said turrets being rotatable to bring any of said sets of devices into operative position, means for carrying said plugs from said forming d vices to said inserting devices, and means for reci ocating said turrets with respect to said carrying means and supporting means.

6. in a machine for filling self-lnln'icatiug bushings means for supporting a perforated bushing to be filled, a turret havin a "olurah ity of sets of devices for forming lubricant plugs, a turret having corresponding sets of devices for inserting said plugs into the perforations in bushing, said turrets being rotatable to bring any of said sets of devices into operative position, devices for centering said turrets with the desired sets of forming and inserting devices in operative position, means for carrying said plugs from said forming devices to said inserting devices, and means for reciprocating said turrets with respect to said carrying means and supporting means.

7. In a machine for fillin self-lubricating bushings means for SHPPOl't-lllg a perforated bushing to be filled, a plurality of intergeared turrets having respectively a plurality of sets of devices for forming lubricant plugs and corresponding sets of devices inserting said plugs into the perforations in said bushing, said turrets being rotatable in unison to bring corresponding sets of devices on the several turrets into operative position, means for carrying said plugs from said forming devices'to said inserting devices, and means for. reciprocating said turrets with respect to said carrying means and supporting means.

8. In a machine for Killing self-lnliiricating bushings, a forming shell, plunger in said shell, a carrier having a poi-f ation and an imperforate portion, said carrier being inovable to bring said perforation into and out of alinement with said plunger, and means for moving said plunger toward and from said carrier to compress lubricant material in said shell against the imperiorate portion of said carrier or to force said material from said shell into said perforation.

9. In a machine for filling self-lubricating bushings, a forming shell, a plunger in said shell, a carrier having perforation and an impcrforate'portion, said carrier being movable to bring said perforation into and out of alinement with said plunger and yielding means for forcing said plunger toward said carrier and means for yieldingly supporting said shell.

10. In a machine for filling self-lubricating bushings, a forming shell, plunger therein, a carrier having a perforation and an imperforate portion, said carrier being movable to bring said perforation into and out of alineinent with said plunger, a hopper for lubricant material having a delivery portion interposed between said plunger and carrier, and means for reciprocating said plunger and shell toward and from said carrier to compress lubricant material in said shell and thereafter force said material from said shell into said perforation.

11. I11 a machine for filling self-lubricating bushings, a. head, a carrier having a plurality of perforations therein, means for recipr eating said head toward and from said carrier, a turret rotatably mounted in said head, means for moving said carri t to bring the perforations therein into and out of position opposite said turret, a plurality of sets of plungers slidably mounted in said turret,

a plurality of sets of forming shells in which said plunger-s operate respectively, a disk yieldingly mounted on said turret and by which said shells are carried said turret and disk being rotatable to bring any of said sets of plunger-s and shells into operative position with respect to said carrier, and yielding abutments in said head for all of said plungers in each position of said turret.

l2. In a machine for filling self-lubricating bushings means for supporting a per- "or ted bushing to be filled, a forming shell, forming plunger therein, an inserting lunger, a carrier having a perforation, said carrier being movable to bring said perforation into alinement with said plunger alternately and means for reciprocating said plunger toward. and from said carrier.

13. In a machine for filling self lubricating to be filled, means for inserting lubricant plugs into the perforations in said. bushing, a carrier for supplying lubricant plugs to said inserting means, and a plurality of forming devices each adapted upon successive operations of said inserting means to form a lubricant plug from lubricant material and place the same in said carrier;

1-1. In a machine for filling self lubricating bushings, means for supporting a pen forated bushing to be filled, a carrier device for forming plugs of lubricant material and placing the same in said carrier, devices for forcing said plugs from said carrier into the perforations in said bushing, and mechanism for connecting and operating said parts to cause, at each operation of the machine, a plug to be formed, a previously formed plug to be placed in said carrier and a plug previously placed in said carrier to be forced therefrom into a perforation in said bushing.

15. In a machine for filling self lubricating bushings, means for supporting a perforated bushing to be filled, means for forming plugs of lubricant material, means for inserting said plugs in the perforations in said bushing, and areciprocating carrier for transferring said plugs from said forming means to said inserting means.

16. In a machine for filling self-lubricating bushings, means for supporting a perforated bushing to be filled, a device for inserting'lubricant plugs into the perforations in said bushing devices located respectively at opposite sides of said inserting device for forming said plugs from lubri cant material, and a carriermovable alter nately in opposite directions for transfer-- ring said plugs from said forming devices to said inserting device.

17. In a machine for filling self-lubricating bushings means for supporting a perforated bushing to be filled, a device for inserting lubricant lugs into the perforabushings, means for supporting a bushtions in said. bushing, devices located respectively at opposite sides of said inserting device for forming said plugs from lubricant material, hoppers for delivering lubri cant material to said forming devices respectively, and a carrier movable alternately in opposite directions for transferring. said plugs from said forming devices to said inserting device.

18. In a machine for filling self-lubricating bushings, means 1.0T supporting a perforated bushing to be filled, means for inserting lubricant plugs into the perforations in said bushing, a carrier for supplying lubricant plugs to said inserting means, devices located respectively at opposite sides of said inserting means and each adapted upon successive operations of said inserting means to form a lubricant plug from lubri-V cant material and place the same in said carrier, and means for moving said carrier alternately in opposite directions to transfer said plugs from said forming devices respectively to said inserting means.

19. In a machine for filling selflubricating bushings, means for supporting a perforated bushing to be filled, a carrier having tWo perforated portions, means for forcing lubricant plugs from the perforations in said carrier into the perforations in said bushing, devices located respectively at 0pposite sides of said forcing means for forming said lubricant plugs in cooperation with imperforate portions of said carrier and for thereafter placing the same in the perforations therein, and means for moving said carrier to place the perforated portions thereof alternately in operative relation with said forcing means, and said forming devices respectively.

20. In a machine for filling self lubricating bushings, means for supporting a perforated bushing to be filled, a turret having a plurality of sets of devices for inserting lubricant plugs into the perforations in said bushing, turrets located respectively at opposite sides of said first named turret and each having corresponding sets of devices for forming said plugs from lubricant material, said turrets being rotatable to bring any of said sets of devices into operative position, a carrier movable alternately in opposite directions for transferring saie plugs from said forming devices to said inse rting device, and means for reciprocating said turrets with respect to said carrier.

21. In a machine for filling self-lubricating bushings, means for supporting a perforated bushing to be filled, means for forming plugs of lubricant material, means for inserting said plugs in the perforations in said bushing, a carrier for transferring said plugs from said forming means to said in serting means, and means for moving said carrier in a rectilinear direction.

22. In a machine for filling self-lubricating bushings means for supporting a perforated bushing to be filled, means for forming plugs of lubricant material, means for inserting said plugs in the perforations in said bushing, a slide having perforations to receive said plugs from said forming means and from which said plugs are forced by said inserting means, meansfor guiding said slide for movement in a rectilinear direction, and means for reciprocating said slide,

23. In a machine for filling self lubricating bushings, means for supporting a perforated bushing to be filled, a crosshead, a perforated carrier, means for reciprocat ing said carder, in a substantially rectilinear direction parallel to saidcross-head, means carried by said cross-head and cooperating With said carrier for forming plugs of lubricant material and thereafter placing the same in the perforations in said carrier, means carried by said crosshead for forcing said plugs from said carrier into the perforations in said bushing, and means for reciprocating said crosshead toward and from said carrier.

24. In a machine for filling self lubricating bushings, means for supporting a perforated bushing to be filled, a crosshead, a perforated carrier, means for reciprocating said carrier in a substantially rectilinear direction parallel to said crosshead, means carried by said cross-head for forcing lubricant plugs from the perforations in said carrier into the perforations in said bushing, devices carried by said cross-head and located respectively at opposite sides of said last named means for forming said plugs and placing the same in the perforations in said carrier.

25. In a machine for filling self-lubrieating bushings, means for supporting a perforated bushing to be filled, a crosshead, a perforated carrier, means for reciprocating said carrier in a substantially rectilinear direction parallel to said crosshead, a turret on said cross-head having a plurality of sets of devices adapted for co-operation With said carrier to form plugs of lubricant material and thereafter place the same in the perforations in said carrier, 2. second turret on said crosshead having correspond ing sets of devices for forcing said plugs from said carrier into the perforations in said bushings.

26. In a machine for filling self-lubrieating bushings, means for supporting a bushing to be filled, a hopper for lubricant material, a carrier, means entering a portion of said hopper for forming plugs from said lubricant material and placing them in said carrier, and means cooperating With said carrier for inserting said plugs into the perforations in said bushing.

27. In a machine for filling self-lubricating bushings, means for supporting a bushing to be filled, means for inserting lubricant plugs in the perforations in said bushing, devices located respectively at opposite sides of said inserting device for forming said plugs from lubricant material, hoppersfor containing said material and having portions within which said forming devices operate, and a carrier movable alternately in opposite directions for transferring said plugs from said forming devices to said inserting means.

28. In a machine for filling self lubricating bushings, means for supporting a bushing to be filled, a hopper for lubricant material, a carrier, means entering a portion of said hopper for forming plugs from said lubricant material and placing them in said carrier, an agitator in said hopper, and means cooperating with said carrier for inserting said plugs into the perforations in said bushing.

29. In a machine for filling self-lubricating bushings, means for supporting a bushing to be filled, means for inserting lubricant plugs in the perforations in said bushing, devices located respectively at oppositesides of said inserting device for forming said plugs from lubricant material, hoppers for containing said material and having portions within which said forming devices operate, agitators in said hopper, a common shaft for operating said agitators, and a carrier movable alternately in opposite directions for transferring said plugs from said forming devices to said inserting means.

In testimony whereof I aflix my signature.

LEONARD BARTLETT. 

